Genetics Quiz
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CHROMOSOMES, MEIOSIS & CYTOGENETICS
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A cross is performed in the fungus Neurospora between a wild-type strain (arg+) and an arginine-requiring mutant (arg-). The resulting zygote undergoes meiosis and a subsequent mitosis to produce an ordered octad of ascospores within an ascus.
If one ascus contains the spore arrangement (arg-, arg-, arg-, arg-, arg+, arg+, arg+, arg+), what meiotic event does this pattern represent?
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